1999 Polaris Sportsman shuts off when gets hot

I have a 1999 polaris sportsman and it shuts off when it gets hot and will not restart till it completely cools. I have changed the coils and checked the plug and it gets no fire when hot. Any ideas?

I've heard of people having problems like this and it turns out that the gasoline is actually boiling in the tank. Topping up with cool gas helps.

if u can put a heat shield of some sort between the engine and your tank to keep the gas cool.

When you say no fire, I assume you mean no spark, which means the problem is not fuel related. If the problem is no spark when it gets hot, you need to address the other components of your ignition system. CDI, pickup coil, stator, maybe even the regulator/rectifier.

BTW, I added the year, make and model to the thread title, please include this info in the future when you start a new thread. If you could also post the engine size so that can be added too.